Installing problems with Vista and QVPN client

I have the WRV210 Wireless G-rangebooster router and Quick VPN client 1.4.0.5 but i can't install the utility on my windows vista portable.

I have downloaded the latest firmware for my device.

If i install the client in windows it 'hangs' on 10% of installing the software. I downloaded a older version of the software after that and i have the same problem. If i go to my register on my windows machine i can't find any installed earlier version of the client.

So, there is an another problem, i think. I can't find anything about this issue in the forum here.

Please, help me out so i can install the software and use the VPN on my portable.